Universal gauge for pinions and escape wheels



July 29, 1930. E. AV|LA 1,771,389

UNIVERSAL GAUGE FOR PINIONS AND ESCAPE WHEELS Filed. larch 28,1928 2 Sheets-Sheet 1 Jul 29, 1930. AVM. 1,771,389 I UNIVERSAL GAUGE FOR PINIONS AND ESCAPE WHEELS Filed March 28, 1928 2 Sheets-Shoot 2 1 pi i escape wheels,ibalance wheels and Both inicroineterfscrews 6 are perforated ,60

the numeral 1 indicates a-rectangular inetal {against which bears uspira lps 'aringl5 which I 1 V i at the center of theap'paratus'forni' a reetanpoint exactly'below the center line ofthe pins slides. Each micrometer screw 6 isprovided uring the. distance between the axles of two 95 Patented July 29,1930 a 1,771389 UNIT D) S A E 1 i i i i r Enamels. Ha os-Tonnes ME lICQ I; i

I UNIVER S A'L GAUGE Fen rimons enn EscAPuwHEnLs" i eucaeoa iiled at 28 1928, Serial in). sem n ill Mexico November 1927;

Th present invention refers to a gauge es into said groove 8." In thisfixed'position of pecially adaptedto be used by watch and clock the nut shown in Figures'lan d' 3 and left makers and repairers, by means of which side of Figure 5, the screw 6 maybe lOngigauge a greatvariety of diiferent operatlonstudinallydisplaced for finemeasurenientsby 5 may be Carried; out without having to change rotating the nut 7 fcarrying with it the sli de 55 bfi gmeasuring tool toanother thereby attached to it; whilje the slides may also be effecting a big saving in time and labor; The niovedyby hand" upon releasing the set scre invention has for. itsobject to provide a inn- 9 fro1n;engagement with the grod g 8 as versa'l gauge by means of which all; kindsof shownin Figurefland'right side of Figure =5.

otherp arts of watches andclocksjinay be 'cenalong their center for receiving a sliding-pin d ggd ;1n asured, trued and 'l'evellt-id' and 10*; which maybe fixed in"'any posiand whichiatthe sametime permits the meastlon' by 'set screws 11; passing hem ab of thicknesses and heights. through the centenof eacli'slide 3 andf3 and V In itheaccompanying drawingsz e through]the-inserted end portions of screws 165 v g 1 top plan view of the gauge. 6. Oneofthese sliding pins 10)" has at one ig." 2 representsTthe gauge viewed from end a; finger-shapedprojection ll2 with 'a jfls t below. r ,"Wh11ethe otherendforinsahollow'point Fig. 3 is another topplan View ofthe gauge for inserting a wheel axlei The other pin 7 20 with attachment for inserting bevel wheels. -(l0 also has" aliollowpoint at one end and T0 .Figgt is a side 'elevation of the gaug f 7 'a mint its othertl d p v FigLisa front elevation of the gauge, The"-a:d acent inner endsof slides 3 and 3 Figs. 6'jan'd 7 show respectively outside are, perforated transversely gfor receiving and inside calipers to be used with the gauge. :fonr round sliding pins 13 having alsofboth Fig.8 is affront view of the plate for holdhollow and pointed ends,-t=hetwo=pins corre- 7 i crib l he l V A spending toeachslide being located exactly eferring to the drawings in detail in 1nithesanieline; The pins 13 may be fixed which similar reference characters correspond inany position by set screws 14 and one of to siinilar parts throughout the several views, said pinsijs preferably provided witha' collar plate havinga rectangular opening in its cenoil-being compressed facilitates the insertion t'er and two slots'Q and 2* parallel with each of a pinion axle between said resiliently of its longer sides. On top of this plate two mounted pin and the opposite sliding pin. I

U-sh'aped members 3 and 3 are slidably "The extremities on oneside of slides 3 and I mounted oppositeeach other by Ineans'of two 3 ar e bevelled and provided with a Vernier blocks 4 for each slide, running in prismatic "1 6shd1ng along a grade ated scale17 cut into ide 15 provided on the under side of slots the bevelled edgegof plate 1: Eachtscale as "2:and"2 Both slides 13*,and3 whenunited also the "corresponding verniers, starts at a i vf p A I V y 113, so that-when the two slides'3 and 3? have The slides 3 and 3 are perforatedlat their/been brought togetherfin the center of the centersvi-andfin eachperforation; is rigidly gauge, thekzeros 'of the verniers correspond fixed the endof a microineter screw 6, eXtend-- -with the zeros on the scales 17 v int: horizontally towards theoutside of said Figure 2 shows the gauge applied to measwith a knur'led'nut 7 having ashoulder-with pinions'18 and'19, the second ofwhich enan annular groove 8, by means of which the gages a center pinion ofthe'first. The'axles nut 7'niay bedetain'ed in a'fixed position on ofbothpinions areheld between the hollow plate 1 means of set lscrew 9 the point points of opposite pins 13 after the two slides of whichenters from'below through plate '1 andB hav'e been separated by hand or by 1. .80

. kind of work. made in the details of construction of the.

means of the micrometer screws 6 .as explained before. The distance betwee the two axles is read on scales 17, and may also be easily transferred to a metal plate by mark ing it with the pointed outer ends of pins 13. The finger 12 of pin is seen placed on the periphery of pinion 18 for ascertaining its true level, which is readily obtained byrotating the pinion. For equalizing the teeth of a pinion of escape wheel, the edge of the wheel to be tested is brought tobear lightly against the shank of a pin13 of the opposite slide, While being held between the pins of one slide, and on rotating the wheel with the finger, any slight obstruction due to a longer tooth'will readily be noticed and can easily a be remedied, Many other applications will appear. to those skilled in the art and need not. be gone into anyfurther.

ilfigure 3 shows the gauge provided with an additional plate 20 screwed to oneof the abutting endsof'either slide 3 or 3? and having a small hole 21 at a point exactly in a line with the points of pins 10 and 10*. This plate servesas shown in said figure, for detaining between it and either one of the pins another bevel wheel 23 held betw'een'thetwo pins 13: ofthe opposite slide.

Instead of the ordinary two-pointedpins 13, otherpins carrying outside; calipers 24 or inside calipers 25may be inserted into the slides 3 and 3 the thicknesses measured being read on scales 17 c as before.

For clamping the gauge to the workbench, two projections 26 and 27 placed at right base plate 1 and permit the gauge to be fixed either in a vertical or in a horizontal position, leaving both hands free. s r Y Obviously, the gauge described may be made in dilferent sizes according to the sizes of wheelsmost commonly used in a special Also various-changes may be gauge without departing from the spirit of the invention.- V

lVhat I claim is I I 1. A gauge for pinions and escape wheels, comprising a metal base plate having a central opening therethrough, two U-shaped nemhers slidably'mounted-thereon, and arranged in reverse relation with respect to eachother with the extremities of the arms of one member adjacent the extremities of the arms of the other; member, respectively,

members relative to the othermember' and to saidsliding members in the direction of its movement, sliding pins passing transversely through the adjacent extremities of the arms of said sliding members and atright angles ito the first named pins, all of sa d pins bemg provided with means for detaining them in a 10 or 10 a'bevel wheel 22 engaged with angles to each other are providedbelow the screws for displacing each of said sliding said base plate,a pin passingthrough each of A and escape wheels,

comprising a fiat metal base plate having a rectangular central. opening therethrough, two U-shaped members slidably mounted thereon, each sliding member forming the half of a rectangular frame, a micrometer screw attached at one end to the center of each of said sliding members, and having a longitudinal bore, nutsprovided on said micrometer screws and each having a shoulder with; an annular groove, a set screw passing through the base plate forentering said annular groove, movable pins passing longitudinally through the bore of each, of said micrometer screws, means'for detaining said longitudinalpins in a fixed position, in said micrometer screws, slidingpins arranged transversely of the sliding memhers'and passing through the extremitiesthereof, each of said pins being provided at oneendzwith a hollow and at the other end with a sharp point, a spiralspring for pushing one of the said last named sliding pins toward the other pin carried by the same sliding member, set screws for detaining said last named pins in fixed position with respect to the sliding members by which they are carried,

opening therethrough, two U-shapedmembers slidably mounted thereon,'and arranged in reverse relation with respect to each other, with the extremities of the arms of one member opposed to the extremities of the arms of the other member, respectively, micrometer screws for moving'sai'd sliding members toward and from each'oth'er and having longitudinal bores, sliding pins in the bores of the micrometer screws, pins at right anglesto the first nam edpins and passing transversely through the arms of the said slidingmembers, means for detaining said sliding pins in fixed positions, a plate attached .to one extremity of one of said sliding members and having a hole in line with the points of the first named sliding pins, means for indicating the distance between adjacent transversely arranged sliding pins, a nd means to facilitate the clamping of the'gauge to a work bench.

4. A gauge for pinions and escape Wheels, comprising a rectangular base plate having passing through said bores of said micrometer screws, sliding pins arranged at right angles to the first named pins and passing through the arms of said sliding members, set screws for detaining each sliding pin in fixed position, a Vernier provided on each sliding member and graduated scales provided on the base plate for determining the distance between adjacent transversely arranged sliding pins.

In testimony whereof I afiix my signature.

ENRIQUE AVILA. 

